Kathryn Elizabeth Kizzar, FNP-C
- Medicare services, 2024
- 92
- Medicare patients, 2024
- 50
- Part D claims, 2024
- 729
- Industry payments
- $603
- Affiliated sites
- 1
- Practice address
- 8253 Sierra Ave, Fontana, CA 92335
- Practice phone
- Call (909) 613-0016
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Benny J Guzman M D Corporation
Fontana, California
Find Kathryn Kizzar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Kathryn Elizabeth Kizzar is a family nurse practitioner in Fontana, California
Kathryn Kizzar practices at Benny J Guzman M D Corporation in Fontana, California.
Kathryn Kizzar's NPI, 1912463589, was assigned on February 19, 2019. Kathryn Kizzar holds California license 95083620.
- NPI
- 1912463589NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0143699785
- NPI enumeration date
- February 19, 2019
- NPI status
- Active
- Practice phone
- (909) 613-0016
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 34
- Medical school graduation
- 2018
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Kathryn Elizabeth Kizzar practices at Benny J Guzman M D Corporation in Fontana, California
Kathryn Kizzar's primary practice is Benny J Guzman M D Corporation, at 8253 Sierra Ave, Fontana, CA 92335 in San Bernardino County. The practice phone is (909) 613-0016.
- Benny J Guzman M D Corporation8253 Sierra Ave, Fontana, CA 92335 · San Bernardino CountyPhone(909) 613-0016
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Kathryn Elizabeth Kizzar is affiliated with 2 sites of care and 1 medical group
Kathryn Kizzar's primary practice is Benny J Guzman M D Corporation in Fontana, California. The medical group on file is Benny J. Guzman, M.D., Corporation. Dmand AI also links Kathryn Kizzar to 1 more group practice or clinic, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Kathryn Elizabeth Kizzar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Kathryn Kizzar practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Benny J Guzman M D Corporation | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Kathryn Elizabeth Kizzar is one of 13,532 family nurse practitioners in California
Family is Kathryn Kizzar's primary specialty in the NPI Registry, under taxonomy code 363LF0000X. Kathryn Kizzar is licensed in California.
Specialties and state licenses
- Family nurse practitioner, CaliforniaPrimary
Family nurse practitioners near Kathryn Kizzar
Counts of family nurse practitioners with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Kathryn Elizabeth Kizzar billed Medicare for 92 services in 2024
CMS data shows 92 Medicare services from Kathryn Kizzar across 3 procedure codes in 2024, for 50 Medicare patients. Medicare paid $3,418 for them. Every service was in an office.
Kathryn Kizzar's Medicare services by type, 2024
- Office and hospital visits55
- Lab and pathology22
- Surgery15
Kathryn Kizzar compared with the California median for family nurse practitioners, 2024
- Kathryn Kizzar
- California median
- Medicare services
- 92vs 23461% below
- Medicare patients
- 50vs 9044% below
- Part D claims
- 421vs 36017% above
Medians across 6,382 family nurse practitioners in California with Dmand AI profiles that report each measure.
Kathryn Kizzar's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Kathryn Elizabeth Kizzar treated 50 Medicare patients in 2024, average age 69
CMS counts 50 Medicare patients who saw Kathryn Kizzar in 2024. The largest group is 65 to 74, with 21 patients. 58% of them have high blood pressure, and 56% have high cholesterol. 74% are also on Medicaid. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Kathryn Kizzar's median patient age at 43, with 61% women.
Kathryn Kizzar's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Kathryn Kizzar's Medicare patients by sex, 2024
- Women2856%
- Men2244%
Chronic conditions among Kathryn Kizzar's Medicare patients, 2024
- High blood pressure58%
- High cholesterol56%
- Diabetes48%
- Arthritis30%
Share of Medicare patients with each condition. A patient can have several.
Kathryn Kizzar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 43
Patient panel by sex, all payers
- Women61%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Kathryn Elizabeth Kizzar wrote 729 Medicare Part D claims in 2024
In 2024, Kathryn Kizzar wrote 729 Medicare Part D claims for 178 patients. 83% of them were for generic drugs. CMS names the drug for 421 of them, across 18 drugs with 11 or more claims each, at $46,495 in total drug cost.
Kathryn Kizzar's Part D claims by kind of drug, 2024
- Generic604 claims83%
- Brand-name and other125 claims17%
Kathryn Kizzar's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Kathryn Kizzar's Part D claims, 2024
- Antibiotics4%31 of 729 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
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Kathryn Elizabeth Kizzar received $603 in industry payments from 2024 to 2025
CMS Open Payments shows 22 general payments to Kathryn Kizzar from 11 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Novo Nordisk Inc paid the most, $159.
General payments to Kathryn Kizzar by program year, 2024 to 2025
Companies that paid Kathryn Kizzar the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Kathryn Elizabeth Kizzar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Kathryn Elizabeth Kizzar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Kathryn Elizabeth Kizzar's NPI number?
Kathryn Elizabeth Kizzar's NPI number is 1912463589. It was assigned on February 19, 2019, and it is active in the NPI Registry.
What does Kathryn Elizabeth Kizzar specialize in?
Kathryn Elizabeth Kizzar is a family nurse practitioner in Fontana, California. The primary specialty in the NPI Registry is Family Nurse Practitioner (taxonomy code 363LF0000X).
Where does Kathryn Elizabeth Kizzar practice?
Kathryn Kizzar practices at 8253 Sierra Ave, Fontana, CA 92335. Kathryn Kizzar's primary practice is Benny J Guzman M D Corporation in Fontana, California. Dmand AI also links Kathryn Kizzar to 1 group practice or clinic.
What is Kathryn Elizabeth Kizzar's office phone number?
The practice phone on file for Kathryn Kizzar is (909) 613-0016.
What is Kathryn Elizabeth Kizzar's medical license number?
Kathryn Kizzar holds California license 95083620.
What medical group is Kathryn Elizabeth Kizzar part of?
Kathryn Kizzar is linked to Benny J. Guzman, M.D., Corporation.
Does Kathryn Elizabeth Kizzar accept Medicare?
Yes. CMS data shows Kathryn Kizzar billed Medicare for 92 services in 2024.
How many Medicare patients does Kathryn Elizabeth Kizzar see?
CMS counts 50 Medicare patients who saw Kathryn Kizzar in 2024, with an average age of 69.
What services does Kathryn Elizabeth Kizzar bill to Medicare?
In 2024, Kathryn Kizzar's most billed Medicare services were office visit, established patient (99213), lab and pathology test (81002) and surgery: heart and blood vessels (36415).
What drugs does Kathryn Elizabeth Kizzar prescribe most?
In 2024 Medicare Part D data, Kathryn Kizzar's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Losartan Potassium.
Has Kathryn Elizabeth Kizzar received payments from drug or device companies?
CMS Open Payments shows $603 in general payments to Kathryn Kizzar from 11 companies from 2024 to 2025. The largest total came from Novo Nordisk Inc.
How long has Kathryn Elizabeth Kizzar been practicing?
Kathryn Kizzar graduated from medical school in 2018, 8 years ago.
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